Boys Bad Romance!
From Zandy no Fansub:Two men bound by fate. One a sadistic lowlife, the other a scary faced guy unaware of his own masochistic tendencies!While now working in his family's café, back in high school, Kyousuke's face was scarred in a sudden attack by a delinquent classmate. Due to this, the café's customers are often terrified of him! Then one day while checking out a new store opening up next door, he realizes it' actually a brothel! But more shockingly, he finds Mikado, the one who gave him the scar there too!A high-tension story about the bonds of fate, going all the way back to their school days!Volume 1: Boys Bad Romance! Volume 2: Boys Bad Romance! Return Match
Knock on Wood
One day my friend bought a ‘back scratcher’. If you were to beat yourself with that, you’d chase the bad luck away...or so he says! The more you get hit, the weirder it feels...?! A back scratcher opened a new door to a SM romance between two young men.
Kemono Asobi
Tsubasa, the distinguished son of a famous musician, has a secret BDSM kink that he struggles to comes to terms with. When he chances upon Masaki, a man who meets people with his fists, will Tsubasa finally be able to understand his own desires?
Simplified Pervert Romance
A lone wolf with a delinquent streak, Kashima enters high school with a reputation that scares off his classmates. Little do his classmates know, Kashima is not a typical delinquent: he is a masochist that enjoys being hit by guys. Ryouji Sanada, despite Kashima's reputation, goes out of his way to talk to Kashima on the first day of high school. Confused by Ryouji, Kashima rebuffs his handsome classmate. But, when Ryouji intervenes in one of Kashima's fight (and attempt to get off), Kashima realizes that Ryouji might just have a secret "perversion" too...
The Gospel
You join a family lawyer working for the Yakuza on his decent into the darkness. After he gains the attention of his boss, Hagiwara slowly realizes that he not only enjoys the pain he *needs* it to feel real. And no matter who abuses him it not enough, not unless its one man giving him that pain...
Tadayoedo Shizumazu, Saredo Naki Mo Sezu
Yashiro has ...issues (more like a whole damn subscription). He's a masochist with slightly sadistic tendencies who gets off more with guys. Otherwise he's your average high school student. Recently though, there's been this annoying classmate Kageyama. Already included in vol 1 of "Saezuru Tori wa Habatakanai"
Immoral Sex